Inventor · disambiguated record
David M. Angell
Also filed as: ANGELL DAVID · ANGELL DAVID M
4 granted patents·0 citations·filing 2017–2023
54Inventor score
Top patents by PatentIndex Score
4 records- 0168US12228220B2Modulating butterfly valve controlTEXTRON INNOVATIONS INC·Filed 2023·Granted Feb 18, 2025·0 cites·8 claims
- 0260US11802632B2Modulating butterfly valve controlBELL TEXTRON INC·Filed 2021·Granted Oct 31, 2023·0 cites·20 claims
- 0346US10823289B2Floating ductsBELL HELICOPTER TEXTRON INC·Filed 2017·Granted Nov 3, 2020·0 cites·20 claims
- 0440US10718225B2Passive gas-leak management systemBELL HELICOPTER TEXTRON INC·Filed 2017·Granted Jul 21, 2020·0 cites·28 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →